PresAir Trol Center Spout Pressure Switch [21A] [1/8" Barb] [SPDT] (PT11120A) flocontrol Timer mechanisms are useful because

Timer mechanisms are useful because they allow the working control portion to be replaced without necessarily replacing the full external enclosure

cleaner electrical repair instead of improvising with a substitute in a critical system area

or no longer offers reliable automatic and manual control

Practical solution for maintenance

PresAir Trol Center Spout Pressure Switch [21A] [1/8" Barb] [SPDT] (PT11120A) flocontrol Timer mechanisms are useful becausePresAir Trol Center Spout Pressure Switch [21A] [1 8" Barb] [SPDT] (PT11120A) is a replacement heater or heater service component from Presair Trol for compatible pool, spa, or bath heating systems. It is used when servicing worn, damaged, or failed heater assemblies where the correct model series, fuel or voltage configuration, sensor style, element size, or hardware fit must be matched. Use part number PT11120A when matching this item to an existing